Year	Number
1996	57.0652160644531
1998	61.9565200805664
2000	61.9565200805664
2002	48.1081085205078
2003	48.6486473083496
2004	47.2636833190918
2005	43.6274528503418
2006	50
2007	50.970874786377
2008	51.4563102722168
2009	48.8038291931152
2010	45.4545440673828
2011	49.7630348205566
2012	47.3933639526367
2013	45.0236968994141
2014	40.3846168518066
2015	41.4285697937012
2016	39.523811340332
2017	39.523811340332
2018	39.0476188659668
2019	39.523811340332
2020	37.6190490722656
2021	39.0476188659668
2022	39.1509437561035